﻿/*
 *      Copyright 2011-2012 Battams, Derek
 *       
 *       Licensed under the Apache License, Version 2.0 (the "License");
 *       you may not use this file except in compliance with the License.
 *       You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 *       Unless required by applicable law or agreed to in writing, software
 *       distributed under the License is distributed on an "AS IS" BASIS,
 *       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *       See the License for the specific language governing permissions and
 *       limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Text;

namespace LivePvrData
{
    class Utils
    {
        static private DateTime EPOCH = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

        static public long UnixTimestampNow()
        {
            TimeSpan tSpan = DateTime.UtcNow - EPOCH;
            return (long)tSpan.TotalSeconds;
        }

        static public long UnixTimestamp(DateTime time)
        {
            if (time.Kind != DateTimeKind.Utc)
                throw new ArgumentException("DateTime argument must be of kind 'UTC'");
            TimeSpan tSpan = time - EPOCH;
            return (long)tSpan.TotalSeconds;
        }
    }
}
